Piston Set — For BMW F10 F22 F23 F30 F32 F33 F34 (Part No.: 11258606461) N20B20 2.0T Engine
The specifications for the Standard (STD) piston kit designed for the BMW N20B20 engine include a bore of 84.00 mm and a stroke of 89.6 mm. Its compression ratio is typically set at 10:1 or 10.2:1, having been specifically engineered for the 2.0-liter N20A/N20B series engines. These kits typically utilize a 22 mm diameter piston pin, with piston ring thickness specifications of 1.2 mm, 1.5 mm, and 2.0 mm.
Description
Standard N20B20 Piston Specifications
Bore: 84.00 mm (Standard)
Stroke: 89.6 mm
Compression Ratio: Typically 10:1 to 10.2:1 (OEM / CP)
Piston Pin Diameter: Φ22 mm
Compression Height: 32.4 mm
Piston Ring Thickness: 1.2 mm / 1.5 mm / 2.0 mm
Connecting Rod Length: 144.35 mm (5.683″)
Material: Typically ZL109 Aluminum Alloy














